湖南农业大学学报（自然科学版）2016，Vol.42Issue(5)：480-483,4.
枸溶性钾肥与硫酸钾配施对烤烟生长及钾素积累与分配的影响
Effects of citrate soluble potassium and potassium sulfate on flue-cured tobacco growth, potassium accumulation and distribution
摘要
Abstract
Sand culture was used to investigate the effect of combined application of citrate soluble potassium and potassium sulfate (in ratio of 1∶3, 1∶1 and 3∶1) on root traits, root activity and potassium accumulation of flue-cured tobacco. The results showed that combined application of citrate soluble potassium and potassium sulfate promoted tobacco root growth and development, which was superior than the single application of citrate soluble potassium or potassium sulfate;potassium content in upper, middle and lower parts of flue-cured tobacco were increased by 7.60%, 23.24% and 39.95% with combined application of citrate soluble potassium and potassium sulfate, compared with that of single potassium sulfate application; while total leaf potassium content distribution rate were increased by 8.41%, 20.91% and 42.03% with citrate soluble potassium and potassium sulfate applied in the ratio of 1∶3, 1∶1 and 3∶1, respectively. Thus citrate soluble potassium in the percentage of 75% and potassium sulfate 25% showed the best treatment effect.关键词
烟草/枸溶性钾肥/根系性状/根系活力/钾素积累/钾素分配Key words
tobacco/citric acid soluble potassium fertilizer/root traits/root activity/potassium accumulation/potassium distribution分类
农业科技引用本文复制引用
李鑫,周冀衡,张毅,宾俊..枸溶性钾肥与硫酸钾配施对烤烟生长及钾素积累与分配的影响[J].湖南农业大学学报（自然科学版）,2016,42(5):480-483,4.基金项目
中国烟草总公司云南省公司项目(2014YN24)；广西中烟工业有限责任公司项目(2014-04)；湖南省研究生科研创新项目(CX2015B238) （2014YN24）
